<pre>  /**
   * The constants used in this Content Widget.
   */
  public static interface CwConstants extends Constants {
    String cwSplitLayoutPanelCenter();

    String cwSplitLayoutPanelDescription();

    String cwSplitLayoutPanelEast();

    String cwSplitLayoutPanelName();

    String cwSplitLayoutPanelNorth1();

    String cwSplitLayoutPanelNorth2();

    String cwSplitLayoutPanelSouth1();

    String cwSplitLayoutPanelSouth2();

    String cwSplitLayoutPanelWest();
  }

  /**
   * An instance of the constants.
   */
  private final CwConstants constants;

  /**
   * Initialize this example.
   */
  @Override
  public Widget onInitialize() {
    // Create a Split Panel
    SplitLayoutPanel splitPanel = new SplitLayoutPanel(5);
    splitPanel.ensureDebugId("cwSplitLayoutPanel");
    splitPanel.getElement().getStyle()
        .setProperty("border", "3px solid #e7e7e7");

    // Add text all around.
    splitPanel.addNorth(new Label(constants.cwSplitLayoutPanelNorth1()), 50);
    splitPanel.addSouth(new Label(constants.cwSplitLayoutPanelSouth1()), 50);
    splitPanel.addEast(new Label(constants.cwSplitLayoutPanelEast()), 100);
    splitPanel.addWest(new Label(constants.cwSplitLayoutPanelWest()), 100);
    splitPanel.addNorth(new Label(constants.cwSplitLayoutPanelNorth2()), 50);
    splitPanel.addSouth(new Label(constants.cwSplitLayoutPanelSouth2()), 50);

    // Add scrollable text to the center.
    String centerText = constants.cwSplitLayoutPanelCenter();
    for (int i = 0; i &lt; 3; i++) {
      centerText += " " + centerText;
    }
    Label centerLabel = new Label(centerText);
    ScrollPanel centerScrollable = new ScrollPanel(centerLabel);
    splitPanel.add(centerScrollable);

    // Return the content
    return splitPanel;
  }

</pre>